From 01573e231f18eb2d99162747186f59511f56b64d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 08 Dec 2023 10:40:48 +0000
Subject: [PATCH] 移去rt

---
 kernel/sound/soc/meson/axg-frddr.c |  276 +++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 files changed, 256 insertions(+), 20 deletions(-)

diff --git a/kernel/sound/soc/meson/axg-frddr.c b/kernel/sound/soc/meson/axg-frddr.c
index a6f6f6a..c3ae8ac 100644
--- a/kernel/sound/soc/meson/axg-frddr.c
+++ b/kernel/sound/soc/meson/axg-frddr.c
@@ -3,7 +3,9 @@
 // Copyright (c) 2018 BayLibre, SAS.
 // Author: Jerome Brunet <jbrunet@baylibre.com>
 
-/* This driver implements the frontend playback DAI of AXG based SoCs */
+/*
+ * This driver implements the frontend playback DAI of AXG and G12A based SoCs
+ */
 
 #include <linux/clk.h>
 #include <linux/regmap.h>
@@ -14,13 +16,41 @@
 
 #include "axg-fifo.h"
 
-#define CTRL0_FRDDR_PP_MODE	BIT(30)
+#define CTRL0_FRDDR_PP_MODE		BIT(30)
+#define CTRL0_SEL1_EN_SHIFT		3
+#define CTRL0_SEL2_SHIFT		4
+#define CTRL0_SEL2_EN_SHIFT		7
+#define CTRL0_SEL3_SHIFT		8
+#define CTRL0_SEL3_EN_SHIFT		11
+#define CTRL1_FRDDR_FORCE_FINISH	BIT(12)
+#define CTRL2_SEL1_SHIFT		0
+#define CTRL2_SEL1_EN_SHIFT		4
+#define CTRL2_SEL2_SHIFT		8
+#define CTRL2_SEL2_EN_SHIFT		12
+#define CTRL2_SEL3_SHIFT		16
+#define CTRL2_SEL3_EN_SHIFT		20
+
+static int g12a_frddr_dai_prepare(struct snd_pcm_substream *substream,
+				  struct snd_soc_dai *dai)
+{
+	struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai);
+
+	/* Reset the read pointer to the FIFO_INIT_ADDR */
+	regmap_update_bits(fifo->map, FIFO_CTRL1,
+			   CTRL1_FRDDR_FORCE_FINISH, 0);
+	regmap_update_bits(fifo->map, FIFO_CTRL1,
+			   CTRL1_FRDDR_FORCE_FINISH, CTRL1_FRDDR_FORCE_FINISH);
+	regmap_update_bits(fifo->map, FIFO_CTRL1,
+			   CTRL1_FRDDR_FORCE_FINISH, 0);
+
+	return 0;
+}
 
 static int axg_frddr_dai_startup(struct snd_pcm_substream *substream,
 				 struct snd_soc_dai *dai)
 {
 	struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai);
-	unsigned int fifo_depth, fifo_threshold;
+	unsigned int val;
 	int ret;
 
 	/* Enable pclk to access registers and clock the fifo ip */
@@ -31,18 +61,10 @@
 	/* Apply single buffer mode to the interface */
 	regmap_update_bits(fifo->map, FIFO_CTRL0, CTRL0_FRDDR_PP_MODE, 0);
 
-	/*
-	 * TODO: We could adapt the fifo depth and the fifo threshold
-	 * depending on the expected memory throughput and lantencies
-	 * For now, we'll just use the same values as the vendor kernel
-	 * Depth and threshold are zero based.
-	 */
-	fifo_depth = AXG_FIFO_MIN_CNT - 1;
-	fifo_threshold = (AXG_FIFO_MIN_CNT / 2) - 1;
-	regmap_update_bits(fifo->map, FIFO_CTRL1,
-			   CTRL1_FRDDR_DEPTH_MASK | CTRL1_THRESHOLD_MASK,
-			   CTRL1_FRDDR_DEPTH(fifo_depth) |
-			   CTRL1_THRESHOLD(fifo_threshold));
+	/* Use all fifo depth */
+	val = (fifo->depth / AXG_FIFO_BURST) - 1;
+	regmap_update_bits(fifo->map, FIFO_CTRL1, CTRL1_FRDDR_DEPTH_MASK,
+			   CTRL1_FRDDR_DEPTH(val));
 
 	return 0;
 }
@@ -80,7 +102,7 @@
 };
 
 static const char * const axg_frddr_sel_texts[] = {
-	"OUT 0", "OUT 1", "OUT 2", "OUT 3"
+	"OUT 0", "OUT 1", "OUT 2", "OUT 3", "OUT 4", "OUT 5", "OUT 6", "OUT 7",
 };
 
 static SOC_ENUM_SINGLE_DECL(axg_frddr_sel_enum, FIFO_CTRL0, CTRL0_SEL_SHIFT,
@@ -96,6 +118,10 @@
 	SND_SOC_DAPM_AIF_OUT("OUT 1", NULL, 0, SND_SOC_NOPM, 0, 0),
 	SND_SOC_DAPM_AIF_OUT("OUT 2", NULL, 0, SND_SOC_NOPM, 0, 0),
 	SND_SOC_DAPM_AIF_OUT("OUT 3", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 4", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 5", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 6", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 7", NULL, 0, SND_SOC_NOPM, 0, 0),
 };
 
 static const struct snd_soc_dapm_route axg_frddr_dapm_routes[] = {
@@ -104,6 +130,10 @@
 	{ "OUT 1", "OUT 1",  "SINK SEL" },
 	{ "OUT 2", "OUT 2",  "SINK SEL" },
 	{ "OUT 3", "OUT 3",  "SINK SEL" },
+	{ "OUT 4", "OUT 4",  "SINK SEL" },
+	{ "OUT 5", "OUT 5",  "SINK SEL" },
+	{ "OUT 6", "OUT 6",  "SINK SEL" },
+	{ "OUT 7", "OUT 7",  "SINK SEL" },
 };
 
 static const struct snd_soc_component_driver axg_frddr_component_drv = {
@@ -111,18 +141,224 @@
 	.num_dapm_widgets	= ARRAY_SIZE(axg_frddr_dapm_widgets),
 	.dapm_routes		= axg_frddr_dapm_routes,
 	.num_dapm_routes	= ARRAY_SIZE(axg_frddr_dapm_routes),
-	.ops			= &axg_fifo_pcm_ops
+	.open			= axg_fifo_pcm_open,
+	.close			= axg_fifo_pcm_close,
+	.hw_params		= axg_fifo_pcm_hw_params,
+	.hw_free		= axg_fifo_pcm_hw_free,
+	.pointer		= axg_fifo_pcm_pointer,
+	.trigger		= axg_fifo_pcm_trigger,
 };
 
 static const struct axg_fifo_match_data axg_frddr_match_data = {
-	.component_drv	= &axg_frddr_component_drv,
-	.dai_drv	= &axg_frddr_dai_drv
+	.field_threshold	= REG_FIELD(FIFO_CTRL1, 16, 23),
+	.component_drv		= &axg_frddr_component_drv,
+	.dai_drv		= &axg_frddr_dai_drv
+};
+
+static const struct snd_soc_dai_ops g12a_frddr_ops = {
+	.prepare	= g12a_frddr_dai_prepare,
+	.startup	= axg_frddr_dai_startup,
+	.shutdown	= axg_frddr_dai_shutdown,
+};
+
+static struct snd_soc_dai_driver g12a_frddr_dai_drv = {
+	.name = "FRDDR",
+	.playback = {
+		.stream_name	= "Playback",
+		.channels_min	= 1,
+		.channels_max	= AXG_FIFO_CH_MAX,
+		.rates		= AXG_FIFO_RATES,
+		.formats	= AXG_FIFO_FORMATS,
+	},
+	.ops		= &g12a_frddr_ops,
+	.pcm_new	= axg_frddr_pcm_new,
+};
+
+static SOC_ENUM_SINGLE_DECL(g12a_frddr_sel1_enum, FIFO_CTRL0, CTRL0_SEL_SHIFT,
+			    axg_frddr_sel_texts);
+static SOC_ENUM_SINGLE_DECL(g12a_frddr_sel2_enum, FIFO_CTRL0, CTRL0_SEL2_SHIFT,
+			    axg_frddr_sel_texts);
+static SOC_ENUM_SINGLE_DECL(g12a_frddr_sel3_enum, FIFO_CTRL0, CTRL0_SEL3_SHIFT,
+			    axg_frddr_sel_texts);
+
+static const struct snd_kcontrol_new g12a_frddr_out1_demux =
+	SOC_DAPM_ENUM("Output Src 1", g12a_frddr_sel1_enum);
+static const struct snd_kcontrol_new g12a_frddr_out2_demux =
+	SOC_DAPM_ENUM("Output Src 2", g12a_frddr_sel2_enum);
+static const struct snd_kcontrol_new g12a_frddr_out3_demux =
+	SOC_DAPM_ENUM("Output Src 3", g12a_frddr_sel3_enum);
+
+static const struct snd_kcontrol_new g12a_frddr_out1_enable =
+	SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL0,
+				    CTRL0_SEL1_EN_SHIFT, 1, 0);
+static const struct snd_kcontrol_new g12a_frddr_out2_enable =
+	SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL0,
+				    CTRL0_SEL2_EN_SHIFT, 1, 0);
+static const struct snd_kcontrol_new g12a_frddr_out3_enable =
+	SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL0,
+				    CTRL0_SEL3_EN_SHIFT, 1, 0);
+
+static const struct snd_soc_dapm_widget g12a_frddr_dapm_widgets[] = {
+	SND_SOC_DAPM_AIF_OUT("SRC 1", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("SRC 2", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("SRC 3", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_SWITCH("SRC 1 EN", SND_SOC_NOPM, 0, 0,
+			    &g12a_frddr_out1_enable),
+	SND_SOC_DAPM_SWITCH("SRC 2 EN", SND_SOC_NOPM, 0, 0,
+			    &g12a_frddr_out2_enable),
+	SND_SOC_DAPM_SWITCH("SRC 3 EN", SND_SOC_NOPM, 0, 0,
+			    &g12a_frddr_out3_enable),
+	SND_SOC_DAPM_DEMUX("SINK 1 SEL", SND_SOC_NOPM, 0, 0,
+			   &g12a_frddr_out1_demux),
+	SND_SOC_DAPM_DEMUX("SINK 2 SEL", SND_SOC_NOPM, 0, 0,
+			   &g12a_frddr_out2_demux),
+	SND_SOC_DAPM_DEMUX("SINK 3 SEL", SND_SOC_NOPM, 0, 0,
+			   &g12a_frddr_out3_demux),
+	SND_SOC_DAPM_AIF_OUT("OUT 0", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 1", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 2", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 3", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 4", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 5", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 6", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 7", NULL, 0, SND_SOC_NOPM, 0, 0),
+};
+
+static const struct snd_soc_dapm_route g12a_frddr_dapm_routes[] = {
+	{ "SRC 1", NULL, "Playback" },
+	{ "SRC 2", NULL, "Playback" },
+	{ "SRC 3", NULL, "Playback" },
+	{ "SRC 1 EN", "Switch", "SRC 1" },
+	{ "SRC 2 EN", "Switch", "SRC 2" },
+	{ "SRC 3 EN", "Switch", "SRC 3" },
+	{ "SINK 1 SEL", NULL, "SRC 1 EN" },
+	{ "SINK 2 SEL", NULL, "SRC 2 EN" },
+	{ "SINK 3 SEL", NULL, "SRC 3 EN" },
+	{ "OUT 0", "OUT 0", "SINK 1 SEL" },
+	{ "OUT 1", "OUT 1", "SINK 1 SEL" },
+	{ "OUT 2", "OUT 2", "SINK 1 SEL" },
+	{ "OUT 3", "OUT 3", "SINK 1 SEL" },
+	{ "OUT 4", "OUT 4", "SINK 1 SEL" },
+	{ "OUT 5", "OUT 5", "SINK 1 SEL" },
+	{ "OUT 6", "OUT 6", "SINK 1 SEL" },
+	{ "OUT 7", "OUT 7", "SINK 1 SEL" },
+	{ "OUT 0", "OUT 0", "SINK 2 SEL" },
+	{ "OUT 1", "OUT 1", "SINK 2 SEL" },
+	{ "OUT 2", "OUT 2", "SINK 2 SEL" },
+	{ "OUT 3", "OUT 3", "SINK 2 SEL" },
+	{ "OUT 4", "OUT 4", "SINK 2 SEL" },
+	{ "OUT 5", "OUT 5", "SINK 2 SEL" },
+	{ "OUT 6", "OUT 6", "SINK 2 SEL" },
+	{ "OUT 7", "OUT 7", "SINK 2 SEL" },
+	{ "OUT 0", "OUT 0", "SINK 3 SEL" },
+	{ "OUT 1", "OUT 1", "SINK 3 SEL" },
+	{ "OUT 2", "OUT 2", "SINK 3 SEL" },
+	{ "OUT 3", "OUT 3", "SINK 3 SEL" },
+	{ "OUT 4", "OUT 4", "SINK 3 SEL" },
+	{ "OUT 5", "OUT 5", "SINK 3 SEL" },
+	{ "OUT 6", "OUT 6", "SINK 3 SEL" },
+	{ "OUT 7", "OUT 7", "SINK 3 SEL" },
+};
+
+static const struct snd_soc_component_driver g12a_frddr_component_drv = {
+	.dapm_widgets		= g12a_frddr_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(g12a_frddr_dapm_widgets),
+	.dapm_routes		= g12a_frddr_dapm_routes,
+	.num_dapm_routes	= ARRAY_SIZE(g12a_frddr_dapm_routes),
+	.open			= axg_fifo_pcm_open,
+	.close			= axg_fifo_pcm_close,
+	.hw_params		= g12a_fifo_pcm_hw_params,
+	.hw_free		= axg_fifo_pcm_hw_free,
+	.pointer		= axg_fifo_pcm_pointer,
+	.trigger		= axg_fifo_pcm_trigger,
+};
+
+static const struct axg_fifo_match_data g12a_frddr_match_data = {
+	.field_threshold	= REG_FIELD(FIFO_CTRL1, 16, 23),
+	.component_drv		= &g12a_frddr_component_drv,
+	.dai_drv		= &g12a_frddr_dai_drv
+};
+
+/* On SM1, the output selection in on CTRL2 */
+static const struct snd_kcontrol_new sm1_frddr_out1_enable =
+	SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL2,
+				    CTRL2_SEL1_EN_SHIFT, 1, 0);
+static const struct snd_kcontrol_new sm1_frddr_out2_enable =
+	SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL2,
+				    CTRL2_SEL2_EN_SHIFT, 1, 0);
+static const struct snd_kcontrol_new sm1_frddr_out3_enable =
+	SOC_DAPM_SINGLE_AUTODISABLE("Switch", FIFO_CTRL2,
+				    CTRL2_SEL3_EN_SHIFT, 1, 0);
+
+static SOC_ENUM_SINGLE_DECL(sm1_frddr_sel1_enum, FIFO_CTRL2, CTRL2_SEL1_SHIFT,
+			    axg_frddr_sel_texts);
+static SOC_ENUM_SINGLE_DECL(sm1_frddr_sel2_enum, FIFO_CTRL2, CTRL2_SEL2_SHIFT,
+			    axg_frddr_sel_texts);
+static SOC_ENUM_SINGLE_DECL(sm1_frddr_sel3_enum, FIFO_CTRL2, CTRL2_SEL3_SHIFT,
+			    axg_frddr_sel_texts);
+
+static const struct snd_kcontrol_new sm1_frddr_out1_demux =
+	SOC_DAPM_ENUM("Output Src 1", sm1_frddr_sel1_enum);
+static const struct snd_kcontrol_new sm1_frddr_out2_demux =
+	SOC_DAPM_ENUM("Output Src 2", sm1_frddr_sel2_enum);
+static const struct snd_kcontrol_new sm1_frddr_out3_demux =
+	SOC_DAPM_ENUM("Output Src 3", sm1_frddr_sel3_enum);
+
+static const struct snd_soc_dapm_widget sm1_frddr_dapm_widgets[] = {
+	SND_SOC_DAPM_AIF_OUT("SRC 1", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("SRC 2", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("SRC 3", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_SWITCH("SRC 1 EN", SND_SOC_NOPM, 0, 0,
+			    &sm1_frddr_out1_enable),
+	SND_SOC_DAPM_SWITCH("SRC 2 EN", SND_SOC_NOPM, 0, 0,
+			    &sm1_frddr_out2_enable),
+	SND_SOC_DAPM_SWITCH("SRC 3 EN", SND_SOC_NOPM, 0, 0,
+			    &sm1_frddr_out3_enable),
+	SND_SOC_DAPM_DEMUX("SINK 1 SEL", SND_SOC_NOPM, 0, 0,
+			   &sm1_frddr_out1_demux),
+	SND_SOC_DAPM_DEMUX("SINK 2 SEL", SND_SOC_NOPM, 0, 0,
+			   &sm1_frddr_out2_demux),
+	SND_SOC_DAPM_DEMUX("SINK 3 SEL", SND_SOC_NOPM, 0, 0,
+			   &sm1_frddr_out3_demux),
+	SND_SOC_DAPM_AIF_OUT("OUT 0", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 1", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 2", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 3", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 4", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 5", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 6", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("OUT 7", NULL, 0, SND_SOC_NOPM, 0, 0),
+};
+
+static const struct snd_soc_component_driver sm1_frddr_component_drv = {
+	.dapm_widgets		= sm1_frddr_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(sm1_frddr_dapm_widgets),
+	.dapm_routes		= g12a_frddr_dapm_routes,
+	.num_dapm_routes	= ARRAY_SIZE(g12a_frddr_dapm_routes),
+	.open			= axg_fifo_pcm_open,
+	.close			= axg_fifo_pcm_close,
+	.hw_params		= g12a_fifo_pcm_hw_params,
+	.hw_free		= axg_fifo_pcm_hw_free,
+	.pointer		= axg_fifo_pcm_pointer,
+	.trigger		= axg_fifo_pcm_trigger,
+};
+
+static const struct axg_fifo_match_data sm1_frddr_match_data = {
+	.field_threshold	= REG_FIELD(FIFO_CTRL1, 16, 23),
+	.component_drv		= &sm1_frddr_component_drv,
+	.dai_drv		= &g12a_frddr_dai_drv
 };
 
 static const struct of_device_id axg_frddr_of_match[] = {
 	{
 		.compatible = "amlogic,axg-frddr",
 		.data = &axg_frddr_match_data,
+	}, {
+		.compatible = "amlogic,g12a-frddr",
+		.data = &g12a_frddr_match_data,
+	}, {
+		.compatible = "amlogic,sm1-frddr",
+		.data = &sm1_frddr_match_data,
 	}, {}
 };
 MODULE_DEVICE_TABLE(of, axg_frddr_of_match);
@@ -136,6 +372,6 @@
 };
 module_platform_driver(axg_frddr_pdrv);
 
-MODULE_DESCRIPTION("Amlogic AXG playback fifo driver");
+MODULE_DESCRIPTION("Amlogic AXG/G12A playback fifo driver");
 MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
 MODULE_LICENSE("GPL v2");

--
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